feat: Add ability to inspect build information and features at runtime

Also re-adds ability to inspect used features

src/database/mod.rs

@@ -3,6 +3,8 @@
 extern crate conduwuit_core as conduwuit;
 extern crate rust_rocksdb as rocksdb;
 
+conduwuit_macros::introspect_crate! {}
+
 conduwuit::mod_ctor! {}
 conduwuit::mod_dtor! {}